Precalculus Examples

Step 1
Set the radicand in greater than or equal to to find where the expression is defined.
Step 2
Solve for .
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Subtract from both sides of the inequality.
Divide each term in by and simplify.
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Divide each term in by .
Simplify the left side.
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Cancel the common factor of .
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Cancel the common factor.
Divide by .
Simplify the right side.
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Divide by .
Step 3
The domain is all values of that make the expression defined.
Interval Notation:
Set-Builder Notation:
Step 4
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